BatteryMINDer Model 12106 &ndash; 6 Volt 1 Amp Two Stage Battery Charger-Maintainer-Conditioner/Desulfator - Designed for Cars, Trucks, Boats, Motorcycles, Golf Carts, etc. EXTENDED BATTERY LIFE - Automatic full time desulfator reverses sulfation (a buildup of lead sulfate crystals) the primary cause of early battery failure by using a patented range of high frequencies to safely remove sulfation and recondition weak batteries. Sulfated batteries once considered beyond recovery can now be brought back to long-term useful condition. BatteryMINDer Model 12106 can help extend battery life up to four times when compared to new batteries not being properly maintained. TWO STAGE CHARGING - Model 12106 is guaranteed to charge and maintain your battery without overcharging it. It features two stage charging programs: Charge and Float-Maintenance with desulfation in both stages (full-time). FULL-TIME BATTERY MONITORING - Utilizes full-time battery monitoring to automatically test the battery several times a second, supplying only the current needed to maintain the battery at full charge. WORKS WITH A VARIETY OF BATTERY TYPES  6 Volt lead acid batteries including flooded (filler cap, maintenance-free, valve regulated lead-acid [VRLA], sealed lead-acid [SLA], AGM, starter, deep cycle and hybrid. Model 12106 can maintain up to four batteries at a time when connected in parallel (6 Volt). Requires the use of user-supplied wiring or Y-Connectors 210AY (sold separately). Ideal for winterizing Cars, Trucks, Motorcycles, ATV, Boat, etc. Not for Aviation Use Utilizes  full-time battery monitoring to automatically test the battery several  times a second, supplying only the current needed to maintain battery at  full charge. Reduces the need to add water to maintenance-type batteries during long, non-use storage. Model 12106Charger-Maintainer-Desulfator 11 DC cord with Quick Connector Battery Clip Cord Set with Quick Connector Fused Ring Terminal Cord Set with Quick Connector